September weather forecast
Seagrove, NC

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Weather in September

The first month of the autumn, September, is still a warm month in Seagrove, North Carolina, with an average temperature fluctuating between 62.6°F (17°C) and 81.9°F (27.7°C).

Temperature

September brings a slight decrease in the average high-temperature, shifting from a hot 88.3°F (31.3°C) in August to a warm 81.9°F (27.7°C). Throughout September, Seagrove registers a consistent average low-temperature of 62.6°F (17°C).

Heat index

The heat index value for September is evaluated at a hot 87.8°F (31°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.
Note that heat index values are valued for light wind and location in the shade. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.

Humidity

In September, the average relative humidity is 75%.

Rainfall

In Seagrove, in September, it is raining for 13 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, there are 155.4 rainfall days, and 28.58" (726mm) of precipitation is accumulated.

Snowfall

In Seagrove, snow does not fall in April through November.

Daylight

In Seagrove, North Carolina, the average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:51 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:03 pm EDT.

Sunshine

In September, the average sunshine is 8.9h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 5 during September leads to these instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

During September, Seagrove experiences an average high-temperature of 81.9°F (27.7°C) and a low-temperature of 62.6°F (17°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in September is evaluated at 87.8°F (31°C).

What is the average humidity in September?

In September, the average relative humidity is 75%.

How much does it rain in September?

In Seagrove, in September, it is raining for 13 days, with typically 2.17" (55mm) of accumulated precipitation.

When it does not snow?

April through November are months without snowfall.

What is the average length of the day in September?

In September, the average day length in Seagrove is 12h and 23min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:51 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:03 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.9h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Seagrove, NC

Average temperature in September - Seagrove, NC
  • Average high temperature in September: 81.9°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (47.7°F).

  • Average low temperature in September: 62.6°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).

Average pressure in September
Seagrove, NC

Average pressure in September - Seagrove, NC
  • Average pressure in September: 30.04"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in September
Seagrove, NC

Average wind speed in September - Seagrove, NC
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in September
Seagrove, NC

Average humidity in September - Seagrove, NC
  • Average humidity in September: 75%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (71%).

Average rainfall in September
Seagrove, NC

Average rainfall in September - Seagrove, NC
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is October (1.73").

Average rainfall days in September
Seagrove, NC

Average rainfall days in September - Seagrove, NC
  • Average rainfall days in September: 13 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is November (9 days).

Average snowfall in September
Seagrove, NC

Average snowfall in September - Seagrove, NC
  • Average snowfall in September: 0"

The month with the highest snowfall is December (1.77").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Seagrove, NC

Average snowfall days in September - Seagrove, NC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Seagrove, NC

Average daylight in September / Average sunshine in September - Seagrove, NC
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in September
Seagrove, NC

Average sunshine days in September - Seagrove, NC
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (11.5 days).

Average UV index in September
Seagrove, NC

Average UV index in September - Seagrove, NC
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in September
Seagrove, NC

Average cloud cover in September - Seagrove, NC
  • Average cloud cover in September: 36

The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 31).

Average visibility in September
Seagrove, NC

Average visibility in September - Seagrove, NC
  • Average visibility in September: 5mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

Seagrove, North Carolina, USA

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